Concerns for missing Clyde man

A vehicle belonging to missing Clyde man Mark George Naylor has been found at the Blue Lake at St Bathans in Central Otago, police say.

Naylor's vehicle, a blue and grey Isuzu Bighorn, appears to have been at the lake since Saturday evening, police said.

A ground and lake search is being conducted by an eight-person search and rescue squad including police and coastguard. Family and friends of the missing man were also on site helping with shoreline searches.